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Python进度条－progressbar2模块

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Python Progressbar模块提供基于文本的可视化进度条，通常用在显示下载进度、显示任务的执行进度等等。

安装Progressbar模块：

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# pip install progressbar
或安装最新版:
# pip install git+https://github.com/WoLpH/python-progressbar

示例代码：

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#!/usr/bin/python
# -*- coding: utf-8 -*-
 
from __future__import print_function
 
import sys
importtime
 
fromprogressbar importAnimatedMarker,Bar,BouncingBar,Counter,ETA,\
    FileTransferSpeed,FormatLabel,Percentage,\
    ProgressBar,ReverseBar,RotatingMarker,\
    SimpleProgress,Timer,AdaptiveETA,AbsoluteETA,AdaptiveTransferSpeed
 
examples =[]
 
 
defexample(fn):
    defwrapped():
        try:
            sys.stdout.write('Running: %s\n' %fn.__name__)
            fn()
            sys.stdout.write('\n')
        exceptKeyboardInterrupt:
            sys.stdout.write('\nSkipping example.\n\n')
 
    examples.append(wrapped)
    returnwrapped
 
 
@example
defwith_example0():
    withProgressBar(max_value=10)as progress:
        fori inrange(10):
            # do something
            time.sleep(0.001)
            progress.update(i)
 
 
@example
def with_example1():
    withProgressBar(max_value=10,redirect_stdout=True)as p:
        fori inrange(10):
            # do something
            p.update(i)
            time.sleep(0.001)
 
 
@example
defexample0():
    pbar= ProgressBar(widgets=[Percentage(),Bar()],max_value=10).start()
    fori inrange(10):
        # do something
        time.sleep(0.001)
        pbar.update(i+ 1)
    pbar.finish()
 
 
@example
defexample1():
    widgets= ['Test: ',Percentage(),' ',Bar(marker=RotatingMarker()),
              ' ',ETA(),' ',FileTransferSpeed()]
    pbar= ProgressBar(widgets=widgets,max_value=1000).start()
    fori inrange(100):
        # do something
        pbar.update(10* i+ 1)
    pbar.finish()
 
 
@example
def example2():
    classCrazyFileTransferSpeed(FileTransferSpeed):
 
        "It's bigger between 45 and 80 percent"
 
        defupdate(self,pbar):
            if45 <pbar.percentage()< 80:
                return'Bigger Now ' + FileTransferSpeed.update(self,pbar)
            else:
                returnFileTransferSpeed.update(self,pbar)
 
    widgets= [CrazyFileTransferSpeed(),' <<<',Bar(),'>>> ',
               Percentage(),' ',ETA()]
    pbar= ProgressBar(widgets=widgets,max_value=1000)
    # maybe do something
    pbar.start()
    fori inrange(200):
        # do something
        pbar.update(5* i+ 1)
    pbar.finish()
 
 
@example
defexample3():
    widgets= [Bar('>'),' ',ETA(),' ',ReverseBar('<')]
    pbar= ProgressBar(widgets=widgets,max_value=1000).start()
    fori inrange(100):
        # do something
        pbar.update(10* i+ 1)
    pbar.finish()
 
 
@example
defexample4():
    widgets= ['Test: ',Percentage(),' ',
              Bar(marker='0',left='[',right=']'),
               ' ',ETA(),' ',FileTransferSpeed()]
    pbar= ProgressBar(widgets=widgets,max_value=500)
    pbar.start()
    fori inrange(100,500 +1,50):
        time.sleep(0.001)
        pbar.update(i)
    pbar.finish()
 
 
@example
def example5():
    pbar= ProgressBar(widgets=[SimpleProgress()],max_value=17).start()
    fori inrange(17):
        time.sleep(0.001)
        pbar.update(i+ 1)
    pbar.finish()
 
 
@example
defexample6():
    pbar= ProgressBar().start()
    fori inrange(10):
        time.sleep(0.001)
        pbar.update(i+ 1)
    pbar.finish()
 
 
@example
def example7():
    pbar= ProgressBar()  # Progressbar can guess max_value automatically.
    fori inpbar(range(8)):
        time.sleep(0.001)
 
 
@example
defexample8():
    pbar= ProgressBar(max_value=8)  # Progressbar can't guess max_value.
    fori inpbar((ifor iin range(8))):
        time.sleep(0.001)
 
 
@example
def example9():
    pbar= ProgressBar(widgets=['Working: ', AnimatedMarker()])
    fori inpbar((ifor iin range(5))):
        time.sleep(0.001)
 
 
@example
defexample10():
    widgets= ['Processed: ',Counter(),' lines (',Timer(),')']
    pbar= ProgressBar(widgets=widgets)
    fori inpbar((ifor iin range(15))):
        time.sleep(0.001)
 
 
@example
defexample11():
    widgets= [FormatLabel('Processed: %(value)d lines (in: %(elapsed)s)')]
    pbar= ProgressBar(widgets=widgets)
    fori inpbar((ifor iin range(15))):
        time.sleep(0.001)
 
 
@example
defexample12():
    widgets= ['Balloon: ',AnimatedMarker(markers='.oO@* ')]
    pbar= ProgressBar(widgets=widgets)
    fori inpbar((ifor iin range(24))):
        time.sleep(0.001)
 
 
@example
defexample13():
    # You may need python 3.x to see this correctly
    try:
        widgets= ['Arrows: ',AnimatedMarker(markers='←↖↑↗→↘↓↙')]
        pbar= ProgressBar(widgets=widgets)
        fori inpbar((ifor iin range(24))):
            time.sleep(0.001)
    exceptUnicodeError:
        sys.stdout.write('Unicode error: skipping example')
 
 
@example
defexample14():
    # You may need python 3.x to see this correctly
    try:
        widgets= ['Arrows: ',AnimatedMarker(markers='◢◣◤◥')]
        pbar= ProgressBar(widgets=widgets)
        fori inpbar((ifor iin range(24))):
            time.sleep(0.001)
    exceptUnicodeError:
        sys.stdout.write('Unicode error: skipping example')
 
 
@example
defexample15():
    # You may need python 3.x to see this correctly
    try:
        widgets= ['Wheels: ',AnimatedMarker(markers='◐◓◑◒')]
        pbar= ProgressBar(widgets=widgets)
        fori inpbar((ifor iin range(24))):
            time.sleep(0.001)
    exceptUnicodeError:
        sys.stdout.write('Unicode error: skipping example')
 
 
@example
defexample16():
    widgets= [FormatLabel('Bouncer: value %(value)d - '),BouncingBar()]
    pbar= ProgressBar(widgets=widgets)
    fori inpbar((ifor iin range(100))):
        time.sleep(0.001)
 
 
@example
defexample17():
    widgets= [FormatLabel('Animated Bouncer: value %(value)d - '),
              BouncingBar(marker=RotatingMarker())]
 
    pbar= ProgressBar(widgets=widgets)
    fori inpbar((ifor iin range(18))):
        time.sleep(0.001)
 
 
@example
defwith_example18():
    withProgressBar(max_value=10,term_width=20,left_justify=False)as \
            progress:
        assertprogress._env_size()is notNone
        fori inrange(10):
            progress.update(i)
 
 
@example
def with_example19():
    withProgressBar(max_value=1)as progress:
        try:
            progress.update(2)
        exceptValueError:
            pass
 
 
@example
defwith_example20():
    progress= ProgressBar(max_value=1)
    try:
        progress.update(1)
    exceptRuntimeError:
        pass
 
 
@example
def with_example21a():
    withProgressBar(max_value=1,redirect_stdout=True)as progress:
        print('',file=sys.stdout)
        progress.update(0)
 
 
@example
defwith_example21b():
    withProgressBar(max_value=1,redirect_stderr=True)as progress:
        print('',file=sys.stderr)
        progress.update(0)
 
 
@example
def with_example22():
    try:
        withProgressBar(max_value=-1)as progress:
            progress.start()
    exceptValueError:
        pass
 
 
@example
defexample23():
    widgets= [BouncingBar(marker=RotatingMarker())]
    withProgressBar(widgets=widgets,max_value=20,term_width=10)as progress:
        fori inrange(20):
            progress.update(i)
 
    widgets= [BouncingBar(marker=RotatingMarker(),fill_left=False)]
    withProgressBar(widgets=widgets,max_value=20,term_width=10)as progress:
        fori inrange(20):
            progress.update(i)
 
 
@example
def example24():
    pbar= ProgressBar(widgets=[Percentage(),Bar()],max_value=10).start()
    fori inrange(10):
        # do something
        time.sleep(0.001)
        pbar+= 1
    pbar.finish()
 
 
@example
def example25():
    widgets= ['Test: ',Percentage(),' ',Bar(marker=RotatingMarker()),
               ' ',ETA(),' ',FileTransferSpeed()]
    pbar= ProgressBar(widgets=widgets,max_value=1000,
                       redirect_stdout=True).start()
    fori inrange(100):
        # do something
        pbar+= 10
    pbar.finish()
 
 
@example
def example26():
    widgets= [
        Percentage(),
        ' ',Bar(),
        ' ',ETA(),
        ' ',AdaptiveETA(),
        ' ',AdaptiveTransferSpeed(),
    ]
    pbar= ProgressBar(widgets=widgets,max_value=500)
    pbar.start()
    fori inrange(500):
        time.sleep(0.001+ (i< 100)* 0.0001+ (i> 400)* 0.009)
        pbar.update(i+ 1)
    pbar.finish()
 
 
@example
defexample27():
    # Testing AdaptiveETA when the value doesn't actually change
    pbar= ProgressBar(widgets=[AdaptiveETA(),AdaptiveTransferSpeed()],
                       max_value=2,poll=0.0001)
    pbar.start()
    pbar.update(1)
    time.sleep(0.001)
    pbar.update(1)
    pbar.finish()
 
 
@example
defexample28():
    # Testing using progressbar as an iterator with a max value
    pbar= ProgressBar()
 
    forn inpbar(iter(range(100)),100):
        # iter range is a way to get an iterator in both python 2 and 3
        pass
 
 
@example
defexample29():
    widgets= ['Test: ',Percentage(),' | ',ETA(),' | ',AbsoluteETA()]
    pbar= ProgressBar(widgets=widgets,maxval=500).start()
    fori inrange(500):
        time.sleep(0.01)
        pbar.update(i+1)
    pbar.finish()
 
 
def test():
    forexample inexamples:
        example()
 
if __name__== '__main__':
    try:
        test()
    exceptKeyboardInterrupt:
        sys.stdout('\nQuitting examples.\n')

Python进度条－progressbar2模块

  • 参考文档：http://progressbar-2.readthedocs.io/en/latest/
  • 还有一个和progressbar类似的模块：tqdm
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